I started taking this before my P90X workouts, and it is amazing! I have so much more energy during the workout and don't get burnt out as fast...I am so glad I invested in this product...it is truly amazing!

I haven't took creatine alone before, so this should be my first time, and I've read about ribose-creatine stack. I was intrigued so I tested this one. Well, the energy and the pumps just weren't there. I've tried it pre-workout, intra-workout and even add some on the post-workout and I definitely don't feel anything adding up to what I have right now. So maybe I'm with the few percentage of people that doesn't gain any benefit from creatine, or this stack just sucks balls. Stick with creatine only if you're a beginner I think.